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when reading a .pdf file in firefox the entire document is not read #14589

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fernando-jose-silva opened this issue Jan 26, 2023 · 6 comments
Open

when reading a .pdf file in firefox the entire document is not read #14589

fernando-jose-silva opened this issue Jan 26, 2023 · 6 comments
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p3 https://github.com/nvaccess/nvda/blob/master/projectDocs/issues/triage.md#priority triaged Has been triaged, issue is waiting for implementation.

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@fernando-jose-silva
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Steps to reproduce:

open a .pdf document in firefox, I believe a document with at least 15 pages.
start reading the document in a sprint, nvda laptop + a

Actual behavior:

in my tests for page 3 or 5, nvda will stop reading the document and display the message for all pages:
chart loading page

Expected behavior:

nvda should read the entire .pdf document like it does in chrome.
It seems that firefox stops loading pages as nvda reads the document, this forces you to stop reading and press ctrl + f5.
it would be interesting for nvda to access new pages automatically as it happens in chrome.

System configuration

NVDA installed/portable/running from source:

portable

N

firefox.txt
VDA version:
nvda.exe, NVDA alpha-27590,180c9f2b

Windows version:

10 19045.2251

Name and version of other software in use when reproducing the issue:

firefox 109.0

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

no

If add-ons are disabled, is your problem still occurring?

yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

yes
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@fernando-jose-silva
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firefox.txt

@michaelDCurran michaelDCurran added p3 https://github.com/nvaccess/nvda/blob/master/projectDocs/issues/triage.md#priority triaged Has been triaged, issue is waiting for implementation. labels Jan 30, 2023
@jcsteh
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jcsteh commented Feb 2, 2023

Firefox doesn't load entire PDF documents because they can potentially be massive (thousands of pages), which would take a very long time to load. However, it should load new pages as you scroll to them. I believe NVDA scrolls during say all, so I'm not sure why this doesn't trigger in this case.

If you down arrow into those pages manually, does the content get loaded?

@fernando-jose-silva
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@jcsteh
thank you very much for the feedback
when reading continues with nvda + a laptop command, and nvda announces
graphic loading page, if you stop reading with ctrl and navigate with the up and down arrows it doesn't make the pages read by nvda, I managed to make nvda read the page by pressing ctrl + f5.

@jcsteh
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jcsteh commented Feb 9, 2023

Could you provide a link to a PDF which reproduces this? I just want to be sure we have consistent reproduction of the issue here.

@fernando-jose-silva
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Cegueira e Autismo -Prevencion e intervencion en los trastornos del desarrollo.pdf
Thank you very much, attached is the .pdf document.

@jcsteh
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jcsteh commented Feb 23, 2023 •
edited

I previously believed NVDA would scroll during say all based on this code. However, it definitely doesn't, as demonstrated by this test case:

data:text/html,<body onscroll="alert('scroll');"><style>hr { height: 100vh; }</style><p>a</p><hr><p>b</p><hr><p>c</p><hr><p>d</p>

Whenever this page scrolls, it pops up a dialog telling you so. If you use the arrow keys on this page, you see that dialog. However, if you use say all, you don't.

I now recall why it doesn't work, as I described in #904 (comment).

In short, this issue will be fixed if/when #904 is fixed.

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@jcsteh @michaelDCurran @fernando-jose-silva